首先, 先创建三个VC.

完毕点击按钮, 进入下一页, 并可以返回.

要先把导航视图控制器创建出来.

在AppDelegate.m 文件里代码例如以下:

#import "AppDelegate.h"

#import "MainViewController.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (void)dealloc{

    [_window release];

    [super dealloc];

}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    // Override point for customization after application launch.

    self.window.backgroundColor = [UIColor whiteColor];

    [self.window makeKeyAndVisible];

    [_window release];

    //先创建一个ViewController

    MainViewController *mainVC = [[MainViewController alloc] init];

   //创建导航视图控制器

    UINavigationController *navC = [[UINavigationController alloc] initWithRootViewController:mainVC];

    self.window.rootViewController = navC;

    //释放

    [mainVC release];

    [navC release];

    return YES;

}

对于导航视图控制器的一些设置.

  //导航视图控制器的高度是44,上面的状态栏高度是20,加在一起默认是64;

  // 加上一个标题.

    self.title = @"猫眼电影";

    // 对外观进行设置,不是全部的颜色都是BackgroundColor;

 self.navigationController.navigationBar.barTintColor = [UIColor redColor];

  // 创建一个UIView

    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];

    view.backgroundColor = [UIColor orangeColor];

    [self.view addSubview:view];

    [view release];

    // 为了防止坐标系被篡改,我们把bar从半透明改为全透明.这样坐标系的原点会自己主动向下推64

    self.navigationController.navigationBar.translucent = NO;

内容方面的设置

    //另外一种标题的设置

    self.navigationItem.title = @"骨头 商店";

    // 指定一些视图,作为titleView

    UISegmentedControl *seg = [[UISegmentedControl alloc] initWithItems:@[@"信息",@"通话"]];

    self.navigationItem.titleView = seg;

    [seg release];

创建左右两个按钮

    //左按钮

    self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem: UIBarButtonSystemItemOrganize target:self action:@selector(leftAction:)] autorelease];

    //右按钮

    //如此创建,原本拖拽的图标的颜色是黄色,但这么创建后,图标是蓝色的.

    self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"狗.png"] style:UIBarButtonItemStylePlain target:self action:@selector(rightAction:)] autorelease];

    // 以下方法图标将会显示黄色.

    // 创建一个小button,把图片装上.

    UIButton *Littlebutton = [UIButton buttonWithType:UIButtonTypeCustom];

    Littlebutton.frame = CGRectMake(0, 0, 40, 40);

    [Littlebutton setImage:[UIImage imageNamed:@"狗.png"] forState:UIControlStateNormal];

    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:Littlebutton];

    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];

    button.frame = CGRectMake(260, 530, 80, 40);

    button.backgroundColor = [UIColor yellowColor];

    [self.view addSubview:button];

    [button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

    button.layer.cornerRadius = 10;

    [button setTitle:@"下一页" forState:UIControlStateNormal];

对应的, 左右两个按钮的点击事件也要实现

- (void)rightAction:(UIBarButtonItem *)button{

}

- (void)leftAction:(UIBarButtonItem *)barButton{

}

点击Button跳转到下一页.

用模态也可以跳转 , 可是跳转的页面不再有导航视图.

实现Button的点击事件

当中我要完毕从前向后传值.

- (void)click:(UIButton *)button{

-    // 用导航视图控制器跳转.

    //1.先创建下一页对象.

    SecondViewController *secondVC = [[SecondViewController alloc] init];

    //通过导航控制器找到

    [self.navigationController pushViewController:secondVC animated:YES];

    [secondVC release];

    // 属性传值第二步

    secondVC.number = 100;

    secondVC.string = self.textField.text;

    secondVC.arr = @[@"haha",@"啦啦"];

}

第二个页面的 .h 中代码:

#import <UIKit/UIKit.h>

@interface SecondViewController : UIViewController

// 属性传值第一步,在第二个页面写一条属性.

@property(nonatomic, assign)NSInteger number;

//属性传值另外一种: 针对TextField中的字符串写一条属性.

@property(nonatomic, copy)NSString *string;

//属性传值第三种: 传一个数组

@property(nonatomic, retain)NSArray *arr;

@end

第二个页面的 .m 中代码:

#import "SecondViewController.h"

#import "ThirdViewController.h"

@interface SecondViewController ()

@property(nonatomic, retain)UILabel *label;

@end

@implementation SecondViewController

- (void)dealloc{

    [_label release];

    [_string release];

    [_arr release];

    [super dealloc];

}

- (void)viewDidLoad {

    [super viewDidLoad];

    // Do any additional setup after loading the view.

    self.view.backgroundColor = [UIColor yellowColor];

    self.navigationController.navigationBar.barTintColor = [UIColor magentaColor];

    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];

    button.frame = CGRectMake(260, 530, 80, 40);

    button.backgroundColor = [UIColor blueColor];

    [self.view addSubview:button];

    [button addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];

    button.layer.cornerRadius = 10;

    [button setTitle:@"下一页" forState:UIControlStateNormal];

    //第三步:

    //第一种:

    NSLog(@"%ld",self.number);

    //另外一种:

    self.label = [[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 50)];

    [self.view addSubview:self.label];

    [_label release];

    self.label.layer.borderWidth = 1;

    //属性传值第三步:里面的值赋给label

    self.label.text = self.string;

   // 第三种:

    NSLog(@"%@",self.arr[1]);

}

- (void)click:(UIButton *)button{

    ThirdViewController *thirdVC = [[ThirdViewController alloc] init];

    [self.navigationController pushViewController:thirdVC animated:YES];

    [thirdVC release];

}

属性传值. 传NSIntger . NSString . NSArray